[clean] Internet Archive Scholar search API no longer exists

Engine was added in #2733 but the API does no longer exists. Related:

- https://github.com/searxng/searxng/issues/4038

Signed-off-by: Markus Heiser <markus.heiser@darmarit.de>

docs/index.rst

@@ -4,22 +4,27 @@ Welcome to SearXNG
 
   *Search without being tracked.*
 
-SearXNG is a free internet metasearch engine which aggregates results from more
+.. jinja:: searx
-than 70 search services.  Users are neither tracked nor profiled.  Additionally,
+
-SearXNG can be used over Tor for online anonymity.
+   SearXNG is a free internet metasearch engine which aggregates results from up
+   to {{engines | length}} :ref:`search services <configured engines>`.  Users
+   are neither tracked nor profiled.  Additionally, SearXNG can be used over Tor
+   for online anonymity.
 
 Get started with SearXNG by using one of the instances listed at searx.space_.
 If you don't trust anyone, you can set up your own, see :ref:`installation`.
 
+.. jinja:: searx
+
    .. sidebar::  features
 
       - :ref:`self hosted <installation>`
       - :ref:`no user tracking / no profiling <SearXNG protect privacy>`
       - script & cookies are optional
       - secure, encrypted connections
-   - :ref:`about 200 search engines <configured engines>`
+      - :ref:`{{engines | length}} search engines <configured engines>`
-   - `about 60 translations <https://translate.codeberg.org/projects/searxng/searxng/>`_
+      - `58 translations <https://translate.codeberg.org/projects/searxng/searxng/>`_
-   - about 100 `well maintained <https://uptime.searxng.org/>`__ instances on searx.space_
+      - about 70 `well maintained <https://uptime.searxng.org/>`__ instances on searx.space_
       - :ref:`easy integration of search engines <demo online engine>`
       - professional development: `CI <https://github.com/searxng/searxng/actions>`_,
 	`quality assurance <https://dev.searxng.org/>`_ &

searx/engines/internet_archive_scholar.py

@@ -1,71 +0,0 @@
-# SPDX-License-Identifier: AGPL-3.0-or-later
-"""Internet Archive scholar(science)
-"""
-
-from datetime import datetime
-from urllib.parse import urlencode
-from searx.utils import html_to_text
-
-about = {
-    "website": "https://scholar.archive.org/",
-    "wikidata_id": "Q115667709",
-    "official_api_documentation": "https://scholar.archive.org/api/redoc",
-    "use_official_api": True,
-    "require_api_key": False,
-    "results": "JSON",
-}
-categories = ['science', 'scientific publications']
-paging = True
-
-base_url = "https://scholar.archive.org"
-results_per_page = 15
-
-
-def request(query, params):
-    args = {
-        "q": query,
-        "limit": results_per_page,
-        "offset": (params["pageno"] - 1) * results_per_page,
-    }
-    params["url"] = f"{base_url}/search?{urlencode(args)}"
-    params["headers"]["Accept"] = "application/json"
-    return params
-
-
-def response(resp):
-    results = []
-
-    json = resp.json()
-
-    for result in json["results"]:
-        publishedDate, content, doi = None, '', None
-
-        if result['biblio'].get('release_date'):
-            publishedDate = datetime.strptime(result['biblio']['release_date'], "%Y-%m-%d")
-
-        if len(result['abstracts']) > 0:
-            content = result['abstracts'][0].get('body')
-        elif len(result['_highlights']) > 0:
-            content = result['_highlights'][0]
-
-        if len(result['releases']) > 0:
-            doi = result['releases'][0].get('doi')
-
-        results.append(
-            {
-                'template': 'paper.html',
-                'url': result['fulltext']['access_url'],
-                'title': result['biblio'].get('title') or result['biblio'].get('container_name'),
-                'content': html_to_text(content),
-                'publisher': result['biblio'].get('publisher'),
-                'doi': doi,
-                'journal': result['biblio'].get('container_name'),
-                'authors': result['biblio'].get('contrib_names'),
-                'tags': result['tags'],
-                'publishedDate': publishedDate,
-                'issns': result['biblio'].get('issns'),
-                'pdf_url': result['fulltext'].get('access_url'),
-            }
-        )
-
-    return results

searx/settings.yml

@@ -1622,11 +1622,6 @@ engines:
     api_site: 'askubuntu'
     categories: [it, q&a]
 
-  - name: internetarchivescholar
-    engine: internet_archive_scholar
-    shortcut: ias
-    timeout: 15.0
-
   - name: superuser
     engine: stackexchange
     shortcut: su